The FixedListDashboardParameter datatype includes various settings.

Table: FixedListDashboardParameter

values[FixedListParameterOption]yes A fixed list of values to use as the dashboard parameters (see FixedListParameterOption Table).
idstringyes The unique identifier of the dashboard parameter.
labelstringyes The label or 'name' displayed next to the input for the variable to make it more human-readable.
orderinteger  A number that determines the order in which parameters are displayed on a dashboard. If null, the parameter is ordered after other parameters in alphanumerical order.

[a] Some arguments may be required, as indicated in this column. For some fields, this column indicates that a result will always be returned for it.